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Volume deformations in grid-less flow simulations

 
: Obermaier, H.; Hering-Bertram, M.; Kuhnert, J.; Hagen, H.

:

Computer graphics forum 28 (2009), Nr.3, S.879-886
ISSN: 0167-7055
ISSN: 1467-8659
Englisch
Zeitschriftenaufsatz
Fraunhofer ITWM ()

Abstract
This paper presents a novel method for the extraction and visualization of volume deformations in grid-less point based flow simulations. Our primary goals are the segmentation of different paths through a mixing device and the visualization of ellipsoidal particle deformations. The main challenges are the numerically efficient processing of deformation tensors and the robust integration of stream- and streaklines at boundaries of the dataset such that closed segments are obtained. Our results show two- and three-dimensional particle deformations as well as the segmentation of volumes in stationary fields and areas in time-dependent datasets taking consistent paths through a mixing device.

: http://publica.fraunhofer.de/dokumente/N-103768.html